linux-kernel - Re: [PATCH 1/3] ALSA: hda/tegra: Skip reset on BPMP devices

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <3b0de739-7866-3886-be9c-a853c746f8b7@gmail.com>
Date:   Tue, 7 Dec 2021 21:02:14 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Sameer Pujar <spujar@...dia.com>, tiwai@...e.com,
        broonie@...nel.org, lgirdwood@...il.com, thierry.reding@...il.com,
        perex@...ex.cz
Cc:     jonathanh@...dia.com, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Mohan Kumar <mkumard@...dia.com>, robh+dt@...nel.org
Subject: Re: [PATCH 1/3] ALSA: hda/tegra: Skip reset on BPMP devices

07.12.2021 20:37, Sameer Pujar пишет:
..
>> HDA won't be reset while display is active on T186+.
> 
> No. HDA reset is applied whenever power-domain is ungated. It can happen
> when either HDA or display device becomes active.

I said "display is active", where do you see "becomes active"?

> So I don't think that
> it is inconsistent.

If display is already active, then shared power domain is already
ungated. It won't be ungated second time in a row, HDA won't get the reset.